Previous Week for Week Ending on Sunday

Currently, I have several weekly reports where the primary report is previous week.  To get previous week, I use week numbers.  I have a column called Week Relative to Current that is used for this. So if it is Week 45 and last week is 44, I set a filter for week relative to current = 1 and that gives me the previous week.

Now, I have a request to use Monday - Sunday as a week instead of Sunday - Saturday.  I can get the date to reflect Sunday as the last day of the week (i.e. week ends 11/3/19 instead of 11/2/19), but I am struggling with translating that to filter for previous week.  I am not sure how to get the current week to reflect ending on Sunday and even if I get that to work, I'm not sure I can translate that to week numbers to filter for previous week.

Any ideas on this would be appreciated.